Notes on Application for Maintenance

√ Different countries purchase products, due to product differences, the warranty period of return and replacement and warranty services will be different.For details, please contact 400-008-8306.

√ When sending products to CZZN, you have to bear the shipping cost first.

√ After the customer sends the problem product back, the CZZN authorized agent or CZZN after-sales Service Center will conduct fault detection on the product to determine the responsibility for the problem after receiving the problem machine. CZZN is responsible for the inspection fee, material fee, labor fee and express fee in case of product quality defect.

√ If the tested product does not meet the condition of free repair, the customer can choose to pay for repair or send back. √ If the problem of the machine is not covered by the warranty (if the machine is damaged by human), we will charge corresponding inspection fee, replacement fee, test fee, labor fee and express fee according to the specific problem.

√ Please note that product maintenance may lead to data loss, please backup your data first.

√ The overinsured product may pay for the data analysis service, and the analysis results will not affect the final processing plan of CZZN.

√ Do not send back batteries with damaged core, bulging, leakage and other serious damage;If it has been sent back, our company will scrap such batteries and do not return them.

√ Due to the differences in product versions, the product does not support global warranty service and can only be provided in the regional maintenance center designated by CZZN.If repairs are required at a designated service center in a non-purchased area, CZZN will do so based on local inventory and will provide fee-only services.

√ If the receiving address provided by the customer is wrong, or the recipient refuses to accept the package, the loss arising therefrom shall be borne by the Customer.

√ If the express delivery fails to deliver or is returned to THE CZZN after rejection, the CZZN will take care of it and calculate the storage fee from the date of return.Due to the requirements of the storage environment, please refer to 400-008-8306 for details of the storage fee. When the storage fee is equivalent to the residual value of the product, CZZN will have the right to dispose of the product.(Calculation method of product surplus value: Surplus value = original selling price - this maintenance cost)

√ Customs duties, customs clearance and other expenses incurred by sending products across borders without CZZN's consent shall be borne by the customer.

√ If the product is flooded, it will seriously affect the product performance and has no maintenance value. Therefore, CZZN is unable to provide maintenance service. It will provide replacement service for the product.

√ Before sending the products for repair, please properly handle the personalized articles and decorations attached to the original products (including but not limited to decorative stickers, UAS stickers, paint spray paint, etc.). CZZN is not responsible for any damage or loss of personalized articles and decorations.

√ In order to ensure your normal rights and interests, please check whether the products are in good condition (whether there is damage caused by logistics and other reasons) when you sign for the goods.If there is any abnormality in the product, please inform us within 7 days from the date of signing for the product.Otherwise, your default product will be deemed to be free of damage and perform normally.